Bait array interference performance analysis method based on one-dimensional range profile

Abstract

The invention belongs to the technical field of electronics and science, and discloses a bait array interference performance analysis method based on a one-dimensional range profile. The method comprises the following steps: establishing a bait array, ship target and rough sea surface integrated model according to actual sea conditions, subdividing the model, and numbering and storing surface elements one by one; performing shielding judgment on the model surface elements in the irradiation range of the radar signal, recording and storing the serial numbers of the reflected surface elements on the propagation path, and recording the serial numbers of the surface elements reached by mutual reflection of the models; solving the electric field under the condition of time domain pulse incidence to obtain a time domain radar echo, and resolving to obtain a one-dimensional range profile of a target object; and performing interference efficiency evaluation on the bait array under the actual sea condition background by using the one-dimensional range profile. According to the method, the problem of efficient calculation of the one-dimensional range profile under the condition that a ship target with a complex structure, a bait array and a rough sea surface are compounded in the prior art is solved.

Description

technical field [0001] The invention belongs to the field of electronics and science and technology, and in particular relates to a decoy array interference effectiveness analysis method based on a one-dimensional range image. Background technique [0002] At present: In the field of radar detection, the main target information obtained includes High Resolution Range Profile (HRRP), Radar Cross Section (Radar Cross section), and range change rate or radial velocity, azimuth, height, etc. The high-resolution range image is a vector and amplitude waveform projected on the radar line of sight by the sub-echoes of target scattering points in each range unit, which is a broadband radar image. The original high-resolution range image data is complex, which not only can reflect a lot of target structure information, but also has the advantages of high-speed processing and easy acquisition, which makes it attract a lot of attention in the field of automatic target recognition and is...

AI Technical Summary

Problems solved by technology

[0004] To sum up, there are the following significant deficiencies in the analysis of the combined jamming effectiveness of decoy arrays, ships, and sea surfaces: For the analysis of decoy arrays, most of them are reasonably analyzed based on the radar cross-section, but the radar cross-section fluctuates greatly with the angle, resulting in inconsistent results. Accurate, large error rate

[0006] (1) Most of the existing decoy array analysis techniques are based on the calculation of the radar cross-section. However, in actual sea conditions, the decoy array fluctuates with the sea surface, while the RCS fluctuates greatly with the angle, resulting in inaccurate results and a large error rate

[0007] (2) In the actual sea conditions, the combined surface area of ​​the decoy array, ship target and sea surface is relatively large, the amount of data for calculating the radar cross section is large and difficult to obtain, the data processing requirements are too high, and the calculation efficiency is too low

[0008] (3) The results obtained by the existing frequency domain-based RCS scattering calculation method are not comprehensive enough to truly simulate the radar echo in the time domain, which brings difficulties to the evaluation of jamming effectiveness in real naval battles

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